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  • What does it mean when a ByteInputStream keeps returning 0?

    - by Zombies
    I have a ByteInputStream, created from a Socket in Java. The connection is to a simple web server that uses chunked transfer encoding. The web server does in fact work in normal browser. But in my program, I am attempting to read, I read the first first bytes (some 5kb of data). But each read after that returns 0 bytes read. Isn't it supposed to block until it can read?

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  • preg_match_all with surrounding data

    - by user323304
    Hey. I have a large amount of log data that I need to get some relevant information out of. The syntax is: WORD1 some text KEYWORD some text WORD2 WORD1 some text KEYWORD some text WORD2 WORD1 some text KEYWORD some text WORD2 WORD1 some text KEYWORD some text WORD2 Would it be possible to use regex to get a certain block out of it - so that when I queried some keyword it would return WORD1 some text THIS_KEYWORD some text WORD2 PS: There could be multiple instances of one keyword, it should return all of the blocks (preg_match_all, PREG_SET_ORDER?).

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  • Pass pre-requisite check information from Config file in InstallShield

    - by sameer
    Hi, I'm trying to achieve a requirement in Pre-requisites part of my package: The package should be able to check for the presence of a specific Operating System or Microsoft Patch on the target machine and block installation if the specified OS&patch is not found. I want to pass this information from Configuration xml or ini file, so that installer need not to be edited and build again for changes in requirements. Any ideas on how to achieve this!!

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  • Is select function internaly call tcp connect ?

    - by Syedsma
    Code Sinnpet: int CreateaTCPSocket() { int iSockID = ACE_OS::socket(......); ACE_OS::set_flags(iSockID,O_NONBLOCK); ACE_OS::bind(); if (ACE_OS::connect(iSockID ,....) < 0) { if (ACE_OS::select(.....,timeout) <= 0) { return INVALID_HANDLE; } } return iSockID; } My question is when connect is failed for non-block error and select is called and say select return success then again we need to call connect or select function internal do connect?

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  • How to load font permanently in blackberry app(font manager loads single time only).when use this code in app it loads gowthami font only once

    - by Raj Kamal
    if (FontManager.getInstance().load("gautami.ttf", "gautami", FontManager.APPLICATION_FONT) == FontManager.SUCCESS) { try{ _fontFamily1 = FontFamily.forName("gautami");//_fontFamily1 = FontFamily.forName("aerial"); } catch(ClassNotFoundException e) { _fontFamily1 = Font.getDefault().getFontFamily(); } _headFont = _fontFamily1.getFont(Font.PLAIN,_size); super.setFont(_headFont); }

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  • how to use is()

    - by Ricky
    Hi guys, How to refactor the follow to put NOT is(":checked") syntax, instead put the codes being executed in the else block? if ($(this).is(":checked")) { // do nothing } else { // To do here } Thanks for all the help.

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  • mysql for dummies

    - by kalixxx
    I just started using mysql and I just can see myself woking with strings! I mean the compiler cant catch errors like this... and its just a mess! is there a wrapper or some kind of class i can add that does something as simple as making a function that adds a table and asks for args? I'm sure there is a tool like that but i cant find it or know its name. plz help.

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  • File.Move error in C#

    - by Bi
    Hi I am trying a simple move as shown below and get the following error: "The process cannot access the file because it is being used by another process." How do I fix this? Thanks. FileInfo file1 = new FileInfo(srcFile); if (file1.Exists) { FileInfo file2 = new FileInfo(destFile); if (!file2.Exists) { try { File.Move(srcFile, destFile); } catch (System.IO.IOException e) { Console.WriteLine(e.Message); } } }

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  • How do I read and write to a file using threads in java?

    - by WarmWaffles
    I'm writing an application where I need to read blocks in from a single file, each block is roughly 512 bytes. I am also needing to write blocks simultaneously. One of the ideas I had was BlockReader implements Runnable and BlockWriter implements Runnable and BlockManager manages both the reader and writer. The problem that I am seeing with most examples that I have found was locking problems and potential deadlock situations. Any ideas how to implement this?

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  • How to write php code to input jsonstring and insert to sql server

    - by Romi
    i am trying to OUTPUT a Json String from the phone and to get it uploaded to the sql server i have. I Do not know how to get the output Json and write the php code... i tried many methods but couldnt find a solution. public void post(String string) { HttpClient httpclient = new DefaultHttpClient(); HttpPost httppost = new HttpPost( "http://www.hopscriber.com/xoxoxox/testphp.php"); try { List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(); nameValuePairs.add(new BasicNameValuePair("myJson", string)); httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); HttpResponse response = httpclient.execute(httppost); String str = inputStreamToString(response.getEntity().getContent()) .toString(); Log.w("SENCIDE", str); } catch (Exception e) { Toast.makeText(getBaseContext(), "notwork", Toast.LENGTH_LONG) .show(); } } private Object inputStreamToString(InputStream is) { // TODO Auto-generated method stub String line = ""; StringBuilder total = new StringBuilder(); // Wrap a BufferedReader around the InputStream BufferedReader rd = new BufferedReader(new InputStreamReader(is)); // Read response until the end try { while ((line = rd.readLine()) != null) { total.append(line); } } catch (IOException e) { e.printStackTrace(); } // Return full string return total; } it outputs a json string as [myJson=[{"name":"FriendTracker","user":"amjgp000000000000000","pack":"org.siislab.tutorial.friendtracker","perm":"org.siislab.tutorial.permission.READ_FRIENDS","level":"Normal"},{"name":"FriendTracker","user":"amjgp000000000000000","pack":"org.siislab.tutorial.friendtracker","perm":"org.siislab.tutorial.permission.WRITE_FRIENDS","level":"Normal"},{"name":"FriendTracker","user":"amjgp000000000000000","pack":"org.siislab.tutorial.friendtracker","perm":"org.siislab.tutorial.permission.FRIEND_SERVICE","level":"Normal"},{"name":"FriendTracker","user":"amjgp000000000000000","pack":"org.siislab.tutorial.friendtracker","perm":"org.siislab.tutorial.permission.FRIEND_NEAR","level":"Dangerous"},{"name":"FriendTracker","user":"amjgp000000000000000","pack":"org.siislab.tutorial.friendtracker","perm":"org.siislab.tutorial.permission.BROADCAST_FRIEND_NEAR","level":"Normal"},{"name":"FriendTracker","user":"amjgp000000000000000","pack":"org.siislab.tutorial.friendtracker","perm":"android.permission.RECEIVE_BOOT_COMPLETED","level":"Normal"},{"name":"FriendTracker","user":"amjgp000000000000000","pack":"org.siislab.tutorial.friendtracker","perm":"android.permission.READ_CONTACTS","level":"Dangerous"},{"name":"FriendTracker","user":"amjgp000000000000000","pack":"org.siislab.tutorial.friendtracker","perm":"android.permission.ACCESS_FINE_LOCATION","level":"Dangerous"},{"name":"FriendTracker","user":"amjgp000000000000000","pack":"org.siislab.tutorial.friendtracker","perm":"android.permission.WRITE_EXTERNAL_STORAGE","level":"Dangerous"},{"name":"FriendTracker","user":"amjgp000000000000000","pack":"org.siislab.tutorial.friendtracker","perm":"android.permission.READ_PHONE_STATE","level":"Dangerous"},{"name":"Tesing","user":"amjgp000000000000000","pack":"com.example.tesing","perm":"null","level":"null"},{"name":"Action Bar","user":"amjgp000000000000000","pack":"name.brucephillips.actionbarexample","perm":"null","level":"null"},.......

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  • How to create an after_save callback on runtime

    - by dorelal
    I am using ruby on rails 2.3.5 . I have user instance. On run time depending on certain conditions I want to add an after_save callback just for this instance. The other issue is that this after_save should take a block or a proc as parameter. What I want is something like this. This is psuedo code. user = User.first proc = Proc.new do puts 'this is foo' end user.after_save proc

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  • Cancel the calculation if input-mismatch was found

    - by Lert Pianapitham
    Hallo everybody, i have programmed a sub procedure, that will be called in the main procedure (called by event of mainForm), to valid the inputs before the main calculation. now i'm searching for a method, how can i cancel the calculation and refocus the mainForm if some inputs mismatch. i think, it's unnecessary to use the Try-Catch statment to trap the error from calculation because i know what is its source and it should be prevented due to the code preformance. Has someone an idea to due with this? best regards Lert Pianapitham

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  • Data extract from website URL

    - by user2522395
    From this below script I am able to extract all links of particular website, But i need to know how I can generate data from extracted links especially like eMail, Phone number if its there Please help how i will modify the existing script and get the result or if you have full sample script please provide me. Private Sub btnGo_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnGo.Click 'url must be in this format: http://www.example.com/ Dim aList As ArrayList = Spider("http://www.qatarliving.com", 1) For Each url As String In aList lstUrls.Items.Add(url) Next End Sub Private Function Spider(ByVal url As String, ByVal depth As Integer) As ArrayList 'aReturn is used to hold the list of urls Dim aReturn As New ArrayList 'aStart is used to hold the new urls to be checked Dim aStart As ArrayList = GrabUrls(url) 'temp array to hold data being passed to new arrays Dim aTemp As ArrayList 'aNew is used to hold new urls before being passed to aStart Dim aNew As New ArrayList 'add the first batch of urls aReturn.AddRange(aStart) 'if depth is 0 then only return 1 page If depth < 1 Then Return aReturn 'loops through the levels of urls For i = 1 To depth 'grabs the urls from each url in aStart For Each tUrl As String In aStart 'grabs the urls and returns non-duplicates aTemp = GrabUrls(tUrl, aReturn, aNew) 'add the urls to be check to aNew aNew.AddRange(aTemp) Next 'swap urls to aStart to be checked aStart = aNew 'add the urls to the main list aReturn.AddRange(aNew) 'clear the temp array aNew = New ArrayList Next Return aReturn End Function Private Overloads Function GrabUrls(ByVal url As String) As ArrayList 'will hold the urls to be returned Dim aReturn As New ArrayList Try 'regex string used: thanks google Dim strRegex As String = "<a.*?href=""(.*?)"".*?>(.*?)</a>" 'i used a webclient to get the source 'web requests might be faster Dim wc As New WebClient 'put the source into a string Dim strSource As String = wc.DownloadString(url) Dim HrefRegex As New Regex(strRegex, RegexOptions.IgnoreCase Or RegexOptions.Compiled) 'parse the urls from the source Dim HrefMatch As Match = HrefRegex.Match(strSource) 'used later to get the base domain without subdirectories or pages Dim BaseUrl As New Uri(url) 'while there are urls While HrefMatch.Success = True 'loop through the matches Dim sUrl As String = HrefMatch.Groups(1).Value 'if it's a page or sub directory with no base url (domain) If Not sUrl.Contains("http://") AndAlso Not sUrl.Contains("www") Then 'add the domain plus the page Dim tURi As New Uri(BaseUrl, sUrl) sUrl = tURi.ToString End If 'if it's not already in the list then add it If Not aReturn.Contains(sUrl) Then aReturn.Add(sUrl) 'go to the next url HrefMatch = HrefMatch.NextMatch End While Catch ex As Exception 'catch ex here. I left it blank while debugging End Try Return aReturn End Function Private Overloads Function GrabUrls(ByVal url As String, ByRef aReturn As ArrayList, ByRef aNew As ArrayList) As ArrayList 'overloads function to check duplicates in aNew and aReturn 'temp url arraylist Dim tUrls As ArrayList = GrabUrls(url) 'used to return the list Dim tReturn As New ArrayList 'check each item to see if it exists, so not to grab the urls again For Each item As String In tUrls If Not aReturn.Contains(item) AndAlso Not aNew.Contains(item) Then tReturn.Add(item) End If Next Return tReturn End Function

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